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TRANSACTIONS WITH AFFILIATES AND OTHER RELATED PARTIES Transactions with Affiliates and Other Related Parties (Tables)
 12 Months Ended
Dec. 31, 2013
Related Party Transactions [Abstract]  
Schedule of Related Party Transactions [Table Text Block]
The following table presents the consolidated statement of operations line item in which our proportionate share is recorded and the amount for each of the periods presented.
 
 
Year Ended December 31,
Consolidated statement of operations line item
 
2013
 
2012
 
2011
 
 
(in thousands)
 
 
 
 
 
 
 
Production costs
 
$
4,097

 
$
3,945

 
$
3,441

Exploration expense
 
502

 
492

 
430

General and administrative expense
 
2,649

 
1,630

 
1,543